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/* Distributed under the OSI-approved BSD 3-Clause License. See accompanying
file LICENSE.rst or https://cmake.org/licensing for details. */
#pragma once
#include "cmConfigure.h" // IWYU pragma: keep
#include <string>
#include <vector>
namespace cm {
namespace GenEx {
struct Evaluation;
}
}
class cmGeneratorTarget;
struct GeneratorExpressionContent;
struct cmGeneratorExpressionDAGChecker;
struct cmGeneratorExpressionNode
{
enum
{
DynamicParameters = 0,
OneOrMoreParameters = -1,
TwoOrMoreParameters = -2,
ZeroOrMoreParameters = -3,
OneOrZeroParameters = -4
};
virtual ~cmGeneratorExpressionNode() = default;
virtual bool GeneratesContent() const { return true; }
virtual bool RequiresLiteralInput() const { return false; }
virtual bool AcceptsArbitraryContentParameter() const { return false; }
virtual int NumExpectedParameters() const { return 1; }
virtual bool ShouldEvaluateNextParameter(std::vector<std::string> const&,
std::string&) const
{
return true;
}
virtual std::string Evaluate(
std::vector<std::string> const& parameters, cm::GenEx::Evaluation* eval,
GeneratorExpressionContent const* content,
cmGeneratorExpressionDAGChecker* dagChecker) const = 0;
static std::string EvaluateDependentExpression(
std::string const& prop, cm::GenEx::Evaluation* eval,
cmGeneratorTarget const* headTarget,
cmGeneratorExpressionDAGChecker* dagChecker,
cmGeneratorTarget const* currentTarget);
static cmGeneratorExpressionNode const* GetNode(
std::string const& identifier);
};
void reportError(cm::GenEx::Evaluation* eval, std::string const& expr,
std::string const& result);
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